Wire tie for reenforcing rods and bars



July 8 1924.

R. G. upw|K WIRE TIE FOR REENFORCING RODS AND BARS Filed May 28. 1923 Patented July. 8, 1924.

RICHARD GIFFORD LUDWIK, OF BROOKLYN, NEW YORK, ASSIGNORI'IO CONCRETE STEELCOMPANY, OF NEW YORK, N. Y.', ACORPORATION' OF DELAWARE.

WIRE TIE FOR REENFORCING RODS AND BARS.

To all whom it'may concern:

Be it known that I, RICHARD Grrronn l LUDWIK, a citizen of the United States, and a r'esidentof the borough of Brooklyn,

county of Kings, State of New York, have ,inventedcertain-new and useful Improvemerits in WireTies for Reenforcing Rods and Bars, ofwh'ich signed to secure together reenforcingi rods "and or'bars at their crossing points; such rods and/or bars. being subsequently. em-

bedded in concretefioors, pavements,roads and the like, for the purpose of strengthening andreenforcing the same.

My invention comprisesja' wire tie mem beradapted to be clamped around such rods and/on bars at their crossing points and the I in proper angular relation with respect to" arms 3 is additionally bent adjacent to said main object of myinvention is to provide a simple and effective device, of minimum cost, for retaining such crossed'bars and/or rods eachother;

A further object of my invention is to provide a wire tie member ofsimple construction, which may have a substantially symmetrical arrangement of parts, that is to say, my improved tie member'comprises a bifurcated element of wire, with a loop at one end ofthe'same; each of the side portions making up such bifurcated structure extending from said loop in substantial pa1'- allelism; having the same shape or contour, and terminating in' free ends.

These and other features of'my invention are'mo're fully described hereinafter; reference beinghad to' the accompanying draw- 'ings, I in which:

Ei'gui e 1, a' perspective'view of a tiemeinber within the scope of my invention.

Fig.2, isa' side elevation ofmyimpro'ved wire tie before theisame'fisp laced in use:

Fig. 3', is" a" perspective view" illustrating:

myiinproved tie'member applied toa'pairof "crossed"reenforcingbarsf or'rods; g V

Elg; 4, isa plan View of'the arrangement Fig. 5', is a side elevation of the samei' Tie' membershave long been employed for is too common to require extended mention; In the accompanying: drawings, 1- have 1llus trated an improvedfforin of wire tie made Application filed May 28,

gether;

1n accordance with my present invention, and the manner of employing the same for securing together reenforcing rods and/or bars placed in angular relation, at the crossmg points of the same.

My improved tie members'may be constructed' from spring wire of suitable gauge and'of such a nature that when applied to the crossing rods and/or bars, the retaining or locking portions will provide'constant ten- S1011 to hold the parts firmly" clamped to- Forconvenience of description, the b'ar'or rod indicated at A, will be referred to a the longitudinal bar,'and the bar indicated at B, will be referred to as the transverse bar.

Referring to Fig. 1, it will be observed that my impro-ved'tie member, indicated generally atl, may be made of a suitable length of WlIBOf proper gaugebent at a point sub- "stantially midway of its length as at 2, to form two arms 3; an open loop 4 connectmg the said arm portions. Each of the loop 4 to provide loops 5, oifset with respect to the loop l, and substantially at right angles thereto.

As initially constructed and prior to use, theplane of the greater portion of the arms 3 is substantially at right angles to the plane 'of the short runs i forming the loop 4, so that if the tievmember 1 is placed over the sions forflatera'l engagement with a bar, they arenot hooks in" the? 1 sense that they can be employed as a support and, infact, in the preferred construction, the actual terminals of thesamema be again bent to a plane "substantiallyparallel to that of the arms 3;

Afterthe loops 4 and 5 of the tie have beenplacedin' engagement with the crossingba'rs' or rods A and B, in the manner in- "dicated in the di'awlngs', one of the arms 3 is L inentotthe end of the first applied arm. As

extending diagonally across the longitudinal bar, andthe end of the same is pressed down into lateral engagement with said longitudinal bar; its inherent tension being sufficient to i'etain'it in the positionindicated. in this position, a portion oi such end may extend below the plane of the upper surface of such longitudinal bar and may extendto or below the plane of the under surface of said bar, although this is not essential. In

like manner, the other arm 3, is extender diagonally across the longitudinal bar, and

' over the arm 3 first applied, the end of the second arm engaging thelongitudinal bar at a point substantially oppos te the engagewill be understood, the lateralengagement of the end or" the second appliediarm will be in a plane above that of the endof the first applied arm since the second he the first. v V

The crossing of the arms in the manner arm must overindicated and the engagement of the end I eral engagement of the ends of the arms 3 with the longitudinahbar insures the retention of the same in their diagonal position with respect .to said longitudinal bar.

A. further feature of conven ence in use is the fact that my improved tie member is devoid of hook ends, hence there is no dan all of said loops being of substantially the same depth and arms extending fI'OInVSfl-ld ger of one tie structure being caught by or tangled with others when workmen are handling the same preparatory to placing them in proper relationwith respect to reenforcing rods and/or bars at the crossing points of the same. dling permits quick assembly, andin practice,;assembly of reentorcing bars and/or rods and connections of the same with my mproved tie shows a material increase in the number applied in unitispaces ottime over t es heretoforein use,

I claim: I

1. A tie for the unction of reenforcing bars, comprising awire member having a loop adapted to one of said bars, a pa ir of loops continuous with the first named loop and adapted to a bar crossing the first;

all of said loops being of substantially the same deptlnand arms extend ng from said pair of loops and adapted to cross over and engage the bar adapted to the fiISt-IY1G11; tioned loop.

2. A. tie for the junction of reenforcing bars, comprising a wire member having a loop adapted to one of said bars, a pair of loops, continuous with the first named loop and adapted to a bar crossing the first;

pair of loops and adapted to cross over the This ease of han bar engaged by the first mentioned loop; said arms having ends for lateral engagement with said bar on opposite sides of the 3. A tie for the junction of reentorcing bars, comprising a wire member having a loop adapted to fit over one of said bars, a pair of loops continuous with the first named loop substantially at right angles thereto and adapted to a bar crossing the first; all of said loops being of substantially the same depth, and arms extending from said pair of loops and adapted to cross over and engage the bar adapted to the first mentioned loop. p

4.- A tie for the junction of reenfo-rcing bar s, comprising awire member havinga loop adapted to one of said bars, a pairof loops continuous with the first named'loop substantially at right, angles thereto and adapted to a bar crossing the first, arms extending fromsaid last mentioned loops and adapted to cross over the bar engaged by the first mentioned loop, and curved ends carried by said arms and adapted tofilie on opposite sides of said engagement therewith. V I

5. A tie for the junction of reenforcing bars,rcomprising a wire member having a loop adapted to rest on one of said bars,

a pair of loops continuous with the "first named loop and in planes substantially at right angles thereto; said pair ofloops fitting under the bar crossing the first, and arms extending from said pair of loops and adapted to be crossed over the bar -engaged by the firstlmentioned loop said arms having ends adapted to lie intensioned engagement with said bar. 1 7/ 6. A tie for the junction of reenforcing bars, comprising a wire member having a loop adapted to rest onone of said bars, apair of loops continuous. with the first named loop and in planes substantially at right angles thereto; said pair of loops fitting under the bar crossing the first, and arms extending from'each of said pair of loops and adapted to be crossed over the the bar engaged by the first mentioned loop, said arms having ends adapted to lie in tensioned engagement with said bar on pposite sides of the same.

7. A tie for the junction of crossed reenforcing bars, comprising a. wire member having a loop adapted to rest upon and substantially fit over the uppermost of said bars, a pair of loops continuous with the first named loop and in planes substantially at right angles thereto; said pair of loops fitting under the lower bar, and arms disposed iii parallel relation extending from said pair of loops and lying on opposite sides of the uppermost bar; said arms being adapted to be crossed over the uppermost bar and having ends adapted to lie on bar in tensioned opposite sides of said uppermost bar in tensioned engagement therewith.

8. A ti for the junction of crossed reenforoing bars, Comprising a wire member having a loop adapted to rest upon and substantially fit over the uppermost of said bars, a pair of loops continuous with the first named loop and in planes substantially at right angles thereto; said pair of 10 loops fitting under the lower bar, and arms disposed in parallel relation extending from said pair of loops and lying on opposite sides of the uppermost bar; said arms being adapted to be crossed over the uppermost bar and having curved ends adapted to lie on opposite sides of said uppermost bar 7 in tensioned engagement therewith.

In witness whereof I have signed this specification.

RICHARD GIFFORD LUDWIK. 

